My 2nd VTC mini is in bad shape. I will have to replace the button soon. So why not use that VTC dual I put away? I loaded af_190624, it is HW v1.0. To my surprise resistance is read wrong. Many times I see 1.2ohms and when I press the button it is only .60. TC never works because it reads lower ohms when I hit the button and ohms only rise .2-.3 then stop counting. Protection is never reached. Sometimes after I leave it alone for a while it will work correctly for a short time then go back to this behavior. I had problems with this series because the clock broke on 2 units. So I put it away and now TC is gone. Is it a HW issue? SW issue? I ordered a few RX75 because supported mods are getting very hard to find.